Horseshoe



J. A. MAGUIRE.

(N0 Model.)

HORSESHOB'Q Patented Mar.27 ,1883.

s Pholmuthognphur, Walhmgion. n. c

UNITED STATES PATENT OFFICE.

JOHN A. MAGUIRE, on PHILADELPHIA, PENNsYLvANiA.

HORSESHOE.

SPECIFICATION formingpart of Letters Patent No. 274,800, dated March 2'7, Z1883.

Application filed February 5,1883. No model.)

To all whom it may concern:

Be it known that I, JOHN A. lVIAGUIRE, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Horseshoes; and

p I do hereby declare the following to be a full,

clear, and exact description of the invention, reference being had to the accompanyin g dra wings, which form part of this specification, in

Figure l is alongitudinal section of horseshoe. Fig. 2 is a plan view of under side of shoe. Fig. 3 is a vertical longitudinal section; Fig. 4, a plan of heel end of shoe. Figs. 5, 6, 7, and 8 are perspectives of removable heel and toe calks.

My invention has for its object to provide horseshoes with removable calks, said shoes and calks being of simple and comparatively inexpensive construction, easilyput together and taken apart, and when attached firm, durable, and efficient, and not liable to become loose with respect to each other.

My improvements consist in the peculiar construction and combinations of parts hereinafter fully set forth, having reference particularly to "the combination, with the calks and shoe,of apin passing through an opening in the shank of the former and a plate inserted in a recess in the inner edge of the latter, and fastened there by a screw, said plate serving to retain the .calk-pin in position and preventing it from coming out by accident, yet afl'ording means of release for said pin when it is desired to remove the ealk from the shoe.

Referring to the accompanying drawings, A

designates a shoe constructed and furnished with my improvements. Said shoe is thickened or formed with lifts a a a at the heels and B. These openings are tapered for the recep tionof conical pins 0 c, and they lead from the outer to the inner edge of the shoe, terminating in recesses D D, formed in such inner edge for the reception of fastening-plates E E. These recesses and the plates which fit in them are beveled or dovetailed at their ends, so that such plates may be securely fastened in the recesses by means of asingle screw or bolt, e. The screw 0 may have either a round or a square head; or, if desired, a bolt with a nut may be substituted therefor.

F F respectively represent the heel and toe calks, which have shanks ff, as shown, the heel-'calks having each a single shank and the toe-calks two shanks. These shanks are circular in cross-section, with ribs or tongues f, to prevent their turning in the shoe openings or sockets. As a modified form of construction, the shanks may be oval or ovaliform in cross-section, as shown in Figs. 7,8. The calks may have either bluntheads, as shown in Figs. 7,8, for summer or ordinary wear, or they may have sharp edges, as shown in Figs. 5, 6, for winter use or travel on ice or snow. When made with sharp edges the calks are formed with flanges or shoulders f at their bases, so as to permit the application of a socketed key or other tool to such flanges in driving or forcing the calks into the shoe, thereby saving said sharp edges from' breakage or impairment when the calks are being put on. Each shoe is designed to be supplied with at least two sets of calks-a blunt set and asharp set-these being interchangeable and put on and off, as

the exigencies of travel require, and as the. wear falls almost entirely upon the calks, one

set of shoes will outlast a great many sets of calks, so that the latter, as they become worn out, should be replaced with new ones.

- To put on the calks, their shanks are first fittedor driven into the shoe openings or sockets B B. The pins 0 c are then inserted in the openings 0 0, being passed in from the inner toward the outer edge of the shoe until their inner ends are flush with or past the inner walls of the recesses D. The plates E are then placed in said recesses and fastened in position by the bolts or screws 6.

To remove the calks, the screws or bolts 6 are first withdrawn and the plates E lifted out. The pins 0 are then driven out of the openings IOO O by means of apin or driver inserted through 2 2'74,eoo

the outer edge of the shoe. The calks are then pried or drawn out.

To facilitate and cheapen manufacture, the openings B 0 may be punched in the shoe and the recesses D formed by means of a rotary cutter. So formed, said recesses Dwill be concave, in which event the plates E should be of corresponding convex outline on their inner or back sides to fit snugly in said recesses.

The improvements described are of course applicable to mule as well as horse shoes, and are claimed equally for both.

What I claim as my invention is 1. The combination of a horseshoe having calla-sockets and transverse pin-passages in tersectingsaid sockets, with removable calks having shanks,with transverse passages registering with those in the shoe, and plates E, secured by screws e, and serving to retain in place fastening-pins inserted in the transverse openings in the shoe and calk-shanks, substantially as shown and described.

2, The combination, with a horseshoe having transverse tapering openings extending" 25 through from side to side, of removable calks Whose shanks have similar openings, conical pins fitted therein, and fastening-plates secured to the shoe behind the thick ends ofsaid pins, and serving to prevent the latter from 0 working out backwardly, substantially as shown and described.

3. The combination of shoe A, having openings B O and recesses D, with pins 0, plates E, screws e, and calks F, with shanks f, sub- 5 stantially as shown.

In testimony that I claim the foregoing I have hereunto set my hand this 2d dayof February, 1883.

ANDREW ZANE, J r., WILL H. POWELL. 

